Occlusion correction improvement instrument and correction improvement method using the instrument

ABSTRACT

An occlusion correction improvement instrument includes an upper mold-mounting member provided with a plate-shaped member that is parallel to a Camper&#39;s plane of an upper model having a tooth model-shaped surface of a maxillary tooth row and with a plane parallel to the Camper&#39;s plane when the upper mold-mounting member has been mounted on the upper model; and a lower mold-mounting member mountable on a lower model having a tooth model-shaped surface of a mandible tooth row and provided with a pin-shaped projection portion that can be fixed, with a position thereof adjusted from side to side and up and down, and with an adjustment member that can adjust a position of the lower mold-mounting member relative to the upper mold-mounting member on the plane parallel to the Camper&#39;s plane, with the projection portion abut on the plate-shaped member of the upper mold-mounting member.

This application is a continuation of U.S. application Ser. No.13/098,716, filed May 2, 2011, which is a divisional of U.S. applicationSer. No. 12/379,101, filed Feb. 12, 2009, now U.S. Pat. No. 7,955,077,which is a continuation of U.S. application Ser. No. 11/282,468 filedNov. 21, 2005, now abandoned.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an occlusion correction improvementinstrument for making the occlusal treatment so that the maxilla and themandible may make correct occlusion in the physiologic positionalrelationship between the cranial bone and the mandible bone and to anocclusion correction improvement method using the instrument.

2. Description of the Prior Art

In the constitution of the occlusion section in a human body, themandible bone and the mandible tooth row are suspended by means ofmuscles from the brainpan while the maxillary bone and the maxillarytooth row are attached to the brainpan. For this, even when the mandiblesection intrinsically has a correct relationship in occlusion relativeto the maxillary section, there is a possibility of the mandible sectiondeviating spontaneously from the maxillary section due to the commonpractice and bad habits of the chewing cycle during the mastication overa long period of time, the action of gravitational pull of the earth,etc. Within the mouth, there is an operation side (right or left) onwhich food is chewed more strongly and a non-operation side (left orright) opposed to the operation side. The difference in the chewingmotion on the opposite sides during the chewing movement produces a timelag in the occlusion section, thereby possibly deviating the mandible tothe rightward, leftward or backward direction.

When the mandible has deviated from the cranial bone, the central lineof the face called “the median line” deviates to change the facialconfiguration. Furthermore, the deviation of the mandible making therole of a balancer relative to the gravitational pull of the earthproduces a distortion from the face to the whole-body posture or achange of the walking manner to possibly exert a burden onto theinternal organs and possibly induce symptoms called “the indefinitecomplaints” that are physical complaints, such as general malaise,dizziness, headache, palpitation, diarrhea, etc. Therefore, the occlusaltreatment has heretofore been made. The occlusal treatment is aimed atcorrecting occlusion between the maxilla tooth row and the mandibletooth row to stabilize the positional relationship of the mandiblerelative to the cranial bone and at forming an intercuspation sectionthat enables the chewing cycle during the mastication by the maxillatooth row and mandible tooth row to be maintained in a stable state.

As means for correcting the positional relationship between the cranialbone and the mandible bone, a mandible position correction instrumentfor correcting the position of the mandible relative to the maxilla hasbeen proposed (JP-A 2004-73628). The mandible position correctioninstrument comprises a floor extending along a superior dental arch, amaxilla teeth engagement portion formed on the inside surface of thefloor, a mandible function cuspis dentis flat vestige formed on theocclusion surface of the floor, a pair of left and right ball claspsprovided on the floor correspondingly between the first and secondbicuspid teeth of the maxilla and a pair of simple hooks provided on thefloor correspondingly respectively to the left and right second molarteeth of the maxilla. By mounting this mandible correction instrument onthe maxilla to guide the mandible to a predetermined position relativeto the maxilla during the course of occlusion between the maxilla teethand the mandible teeth, thereby depriving a patient of the indefinitecomplaints.

As another means for correcting the occlusion, an occlusion adjustmentgauge plate provided with a median line (the general gravity line)provided at the center of a transparent flat plate, lines showing thepositions of the buccal cuspis dentis apexes on the cheek side of theopposite first bicuspid teeth in parallel to the median line and in asymmetry fashion, a line showing the contact point between the caninetooth and the first bicuspid tooth and orthogonal to these lines, and aline connecting the centrifugal adjacent contact points of the oppositefirst molar teeth has been proposed (JP-A 2001-276098). This occlusionadjustment gauge plate is designed to detect the distortion and accurateposition of the dental arch during the course of the occlusion by usinga transparent flat plate as a substrate and adjusting all the teeth ofthe maxilla and mandible to be in contact with the surface of the gauge.

Under the present circumstances, however, physicians that make thedental treatment (dentists) rely greatly on their own experiences andgut feelings encountered so far in performing the occlusion treatment.Furthermore, since occlusion treatments by various operative methodsexist, it is under the present circumstances that the dentists haveactually adopted different operative methods they believe to be the bestas the occlusion treatment. Therefore, this has raised the problems thatthe results of improvement on the symptoms obtained by the occlusiontreatment differs from one another and that the time required for theocclusion treatment is not constant. Particularly, it has raised aserious problem to the patients that the technical levels of thedentists are not constant. Furthermore, since patients have differentsymptoms, respectively, when they have undergone the same occlusiontreatment by the same dentist, the same treatment effect could not beobtained.

For example, the chewing cycle is classified into a so-called grindingtype that is an occlusion type of motion such as grinding food by thelateral movement of the jaws during the teeth occlusion and a so-calledchopping type that is an occlusion type of moving the jaws in thelongitudinal direction, with the lateral movement of the jaws preventedby some abnormality or other. In the case of performing the occlusiontreatment for the purpose of attaining the physical restoration of theocclusion, when all the physical restoration is to be exclusivelyapplied to the chopping type, persons performing the occlusion of thegrinding type will encounter an additional occlusion dysfunction. Sincethe chewing functional movement is an integrated series of motions ofthe jaw joints, nerves, muscles, tooth rows and occlusion faces, theseare to be all taken into consideration when performing the occlusaltreatment.

The mandible position correction instrument of JP-A 2004-73628 ismounted onto the maxillary teeth to be contemplating positionalcorrection of the mandible by occlusion of the maxillary teeth andmandible teeth. Since a superior dental arch on which the instrument ismounted, a desired position of the mandible teeth, etc. are notexplicitly described in the prior art, no technical source that enablesthe mounted instrument to correct the positional relationship betweenthe maxillary teeth and the mandible teeth to a correct one isdisclosed. Furthermore, since no method for manufacturing the instrumentis disclosed, the instrument is difficult to manufacture.

The occlusion adjustment gauge plate of JP-A 2001-276098 is manufacturedbased on the data of an average dental arch for Japanese personsbelonging to the mongoroid human beings. Since the differences amongindividuals on the upper and lower tooth rows are not taken intoconsideration, it is difficult to say that this gauge plate is aninstrument that can realize ideal occlusion for individual patients, andthere is a fair possibility of an individual difference in the occlusiontreatment effect arising among the patients. Furthermore, the gaugeplate when a patient has performed occlusion between the upper and lowertooth rows is difficult to visually discern from the outside, resultingin difficulty to make correct measurements. Moreover, since this gaugeplate is an instrument having gauges inscribed on a plate at prescribedintervals, it cannot reply to the differences in width and length of thepatients' tooth rows. This means the preparation of a great number ofvarious kinds of gauge plates is required so as to deal with tooth rowsof different sizes, resulting in occurrence of cumbersome measurement incompliance with patients and time-consuming work. What is worse, wherethere is no gauge plate suitable for a patient, correct measurementscannot be made. Further, there is also another related technology (forexample, WO 87/00747) in which attention is focused on a Camper's planeand an upper mold-mounting member provided with a plane that is parallelto the Camper's plane is used, thereby realizing appropriate occlusioncorrection.

However, in all the above-mentioned conventional technologies, theocclusion correction is performed based on a positional relationshipbetween the Camper's plane, the upper mold-mounting member, and the likeonly in the head (living body) of the patient. The inventors of thepresent invention have found that the occlusion correction performedbased thereon does not lead to a fundamental improvement. That is, thepatient's head is a parenchyma which differs among individuals. Forexample, positions of right and left ears and depths thereof aredifferent with each other. Accordingly, by using those as reference,there is performed the occlusion correction with torsion. As a result,in a state where a human being is standing, even if the person feelsthat he or she is standing upright, in fact, the person is inclined tosome degree. Accordingly, the inventors of the present invention are thefirst one who have noted that, the Camper's plane has to be set bymaking a consideration to difference in inclination among individualpatients, otherwise it is impossible o provide an appropriate occlusioncorrection improvement instrument for each patient. The presentinvention has been developed as a result of the keen studies in view ofthe present state of affairs and the object thereof is to provide anocclusion correction improvement instrument capable of providing theocclusal treatment of the positions of the cranial bone and mandiblethat manifests an extremely high level of therapeutic effect for eachpatient based on a relationship between a gravitational pull and acenter of gravity of the individual patient's head, restoring the facialconfiguration to deprive a patient of the indefinite complaint andcorrecting a patient's whole-body posture distortion. Thus, theinstrument of the present invention can provide body correctiontreatment relative to all diseases thought to result from inappropriateocclusion-related treatment, thereby contributing to the health of theentire body. That is, the inventors of the present invention have fondthat, regarding a balance of the occlusion of the maxilla and themandible, an optimum occlusion position can be determined based on thegravitational pull and the center of gravity, and the above-mentionedobject can be achieved by determining the occlusion position at thecenter of gravity.

SUMMARY OF THE INVENTION

To attain the above object, the present invention provides, as a firstaspect thereof, an occlusion correction improvement instrumentcomprising an upper mold-mounting member provided with a plate-shapedmember that is parallel to a Camper's plane of an upper model having atooth model-shaped surface of a maxillary tooth row and with a planeparallel to the Camper's plane when the upper mold-mounting member hasbeen mounted on the upper model. The occlusion correction improvementinstrument also comprises a lower mold-mounting member mountable on alower model having a tooth model-shaped surface of a mandible tooth rowand provided with a pin-shaped projection portion that can be fixed,with a position thereof adjusted from side to side and up and down, andwith an adjustment member that can adjust a position of the lowermold-mounting member relative to the upper mold-mounting member on theplane parallel to the Camper's plane, with the projection portion abuton the plate-shaped member of the upper mold-mounting member.

In a second aspect of the invention that includes the first aspectthereof, the plate-shaped member is mounted on the upper mold-mountingmember using a jig for acquiring a plane parallel to the Camper's planeof the upper model.

In a third aspect of the invention that includes the first or secondaspect thereof, the lower mold-mounting member has a plate member havinga frame body, and the projection portion has a proximal part helicallyengaged with the plate member so as to be movable vertically relative tothe plate member and horizontally relative to the frame body.

In a fourth aspect of the invention that includes any one of the firstto third aspects thereof, the projection has a distal end formed into asemi-spherical shape in cross section.

The present invention also provides an occlusion correction improvementmethod comprising a step of acquiring a plane parallel to a Camper'splane of an upper model having a tooth model-shaped surface of amaxillary tooth row, and a step of forming an upper mold-mounting memberthat comprises an upper frame mountable on the upper model and aplate-shaped member attached to the upper frame in parallel to theparallel plane. The occlusion correction improvement method alsocomprises a step of forming a lower mold-mounting member that comprisesa lower frame mountable on a lower model having a tooth model-shapedsurface of a mandible tooth row and an adjustment member attached to thelower model and provided with a pin-shaped projection portion that ismovable side to side and up and down relative to the lower frame andcapable of abutting on the plate-shaped member of the uppermold-mounting member. The occlusion correction improvement methodfurther comprises a step of correction including adjustment of aposition of the projection portion, adjustment of a position of thelower mold-mounting member relative to the upper mold-mounting member inthe presence of a change of the relative position from a state whereinthe projection portion is abut on the plate-shaped member in aneighborhood of a center portion thereof and a pretreatment ofexcavation or prosthesis.

In a sixth aspect of the invention that includes the fifth aspectthereof, the plate-shaped member is mounted on the upper mold-mountingmember using a jig for acquiring a plane parallel to the Camper's planeof the upper model at the step of forming the upper mold-mountingmember.

In a seventh aspect of the invention that includes the fifth or sixthaspect thereof, the lower mold-mounting member is provided with a platemember having a frame body, and the projection portion has a proximalpart helically engaged with the plate member so as to be movablevertically relative to the plate member and horizontally relative to theframe body at the step of forming the lower mold-mounting member.

In an eighth aspect of the invention that includes any one of the fifthto seventh aspects thereof, the projection has a distal end formed intoa semi-spherical shape in cross section at the step of forming the lowermold-mounting member.

According to the first aspect of the invention, an occlusion correctionimprovement instrument is provided with which occlusal treatmentmanifesting an extremely high effect can be made irrespective ofdentists' experiences or levels of technique, and occlusion of thecranial bone and mandible can be cured appropriately in conformity tothe symptom of a patient to correct the distortion in the patient'sfacial configuration, eliminate the indefinite complaint and correct thedistortion of the patient's entire body posture, thereby contributing toan improvement in the health condition of the patient's body. Inaddition, the patient having undergone the occlusal treatment enjoysgood occlusion and can make correct chewing movement and bite food andeven hard food off with his or her teeth into minute pieces. This isrunning on prevention of not only dental diseases, such as caries,alveolar pyorrhea, etc. but also other diseases by body correctiontreatment. Also, this treatment can be made by simple and explicitprocedures.

According to the second aspect of the invention, an occlusion correctionimprovement instrument is provided which is capable of exactly acquiringa different Camper's plane for every one patient, accurately measuringthe patient's occlusion state and making correct treatment.

According to the third aspect of the invention, an occlusion correctionimprovement instrument is provided which is capable of being used evenin the case where the position of the mandible is deviated relative tothe brainpan through the inappropriate occlusion over a long period andvisually discerning the position of the mandible relative to thebrainpan.

According to the fourth aspect of the invention, an occlusion correctionimprovement instrument is provided which is capable of reducing thefriction of the distal end of the projection portion against theplate-shaped member, allowing the projection portion to move smooth ontothe plate-shaped member and describe its track on the surface of theplate-shaped member, thus showing the state of occlusion of themaxillary and mandible tooth rows with exactitude, and capable ofvisually discerning the state with ease from outside.

According to the fifth aspect of the invention, an occlusion correctionimprovement method is provided by which occlusal treatment manifestingan extremely high effect can be made through prescribed standardizedsteps and irrespective of dentists' experiences or levels of technique,and occlusion of the cranial bone and mandible can be curedappropriately in conformity to the symptom of a patient to correct thedistortion in the patient's facial configuration, eliminate theindefinite complaint and correct the distortion of the patient's entirebody posture, thereby contributing to an improvement in the healthcondition of the patient's body. In addition, the patient havingundergone the occlusal treatment enjoys good occlusion and can makecorrect chewing movement and bite food and even hard food off with hisor her teeth into minute pieces. This is running on prevention of notonly dental diseases, such as caries, alveolar pyorrhea, etc. but alsoother diseases by body correction treatment.

According to the sixth aspect of the invention, an occlusion correctionimprovement method is provided which is capable of exactly acquiring adifferent Camper's plane for every one patient, accurately measuring thepatient's occlusion state and making correct treatment.

According to the seventh aspect of the invention, an occlusioncorrection improvement method is provided that can provide a lowermold-mounting member capable of replying even to the case where theposition of the mandible is deviated relative to the brainpan throughthe inappropriate occlusion over a long.

According to the eighth aspect of the invention, an occlusion correctionimprovement method is provided that can provide a lower mold-mountingmember capable of reducing the friction of the distal end of theprojection portion against the plate-shaped member, allowing theprojection portion to describe its track on the surface of theplate-shaped member with exactitude, thus showing the state of occlusionof the maxillary and mandible tooth rows with exactitude, and capable ofvisually discerning the state with ease from outside

The above and other objects, characteristic features and advantages ofthe present invention will become apparent to those skilled in the artfrom the description to be made herein below with reference to theaccompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flow chart illustrating the procedure of an occlusaltreatment.

FIG. 2 is a perspective view showing the state of an occlusioncorrection improvement instrument according to the present inventionmounted.

FIG. 3 is an explanatory view illustrating a mounted state of theocclusion correction improvement instrument.

FIG. 4 is a plan view showing the state of an upper mold-mounting membermounted onto the maxilla.

FIG. 5 is a plan view showing the state of a lower mold-mounting membermounted onto the mandible.

FIG. 6 is a front view showing the mounted state of the occlusioncorrection improvement instrument.

FIG. 7 is a front view showing an adjusted state of the occlusioncorrection improvement instrument.

FIG. 8 is a plan view showing an adjusted state of the occlusioncorrection improvement instrument.

FIG. 9 is a front view showing the state of occlusion of the maxilla andmandible.

FIG. 10 is an enlarged cross section taken along line X-X in FIG. 3.

FIG. 11 is an explanatory view illustrating a mounted state of amounting jig.

FIG. 12 is a plan view showing a flat plate.

FIG. 13 is a front view showing the state of a plane-acquiring devicemounted onto the head.

FIG. 14 is a side view showing the state of the plane-acquiring devicemounted onto the head.

FIG. 15 is a schematic view illustrating a mounted state of a guidemember.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

One embodiment of each of the occlusion correction improvementinstrument and the occlusion correction improvement method according tothe present invention will be described in detail with reference to theaccompanying drawings.

A physician that makes dental treatments (dentist) first asks a patientabout his or her condition and examines the patient. This includeschecking the symptoms of the muscle in the state of occlusion of themaxilla and mandible before a dental treatment, taking photographs ofthe inside of the oral cavity and the entire body, taking an X-rayfluoroscopic picture, etc. to acquire a denture mold and thereafter amodel 10 of this denture mold is produced. The denture mold model 10 isproduced in accordance with an ordinary production method thatcomprises, for example, forming molds of the maxillary tooth row andmandible tooth row M and N and pouring gypsum into the molds. The model10 comprises an upper model 11 having the maxillary tooth row M and alower model 12 having the mandible tooth row N.

In FIG. 3, a plane C′ in parallel to a Camper's plane C of the patientis determined within the oral cavity of the patient. The Camper's planeC is a virtual plane when setting an occlusion plane. Though it isdefined as a virtual plane connecting a horizontal coordinate P of thelower point of the ala nasi in FIG. 9 and a horizontal coordinate Q ofthe upper edge of the auditory meatus, there is an actual case where avirtual plane connects the lower point of the ala nasi and thehorizontal plane of the lower edge of the auditory meatus. Therefore, apreferable Camper's plane may be selected in accordance with the facialconfiguration, the occlusion state of the maxillary tooth row andmandible tooth row M and N, etc. of the patient. The Camper's plane isobtained using a prescribed device mounted on a human body. While in thepresent embodiment a headgear like device is used, different modes ofdevices, such as an eyeglass like device, may be adopted.

FIG. 13 and FIG. 14 show one example of a headgear like Camper'splane-acquiring device 50. The plane-acquiring device 50 comprises astrap member 51 mounted on the head, a plane member 52 in the shape of aboomerang attached as being suspended from the strap member 51 andlaying in the direction moving across the face, and a plane-measuringmember 53 that is a level provided substantially at the center of theplane member 52. For example, the neighborhood of the center of theplane member 52 is provided with markings at intervals of around 5 mm.In this case, the amount of deviation from the center portion (thecenter of gravity) can be numerically recorded. The plane-measuringmember 53 may also be attached to each of the right and left sides ofthe plane member 52. The strap member 51 is provided at the centerthereof on the face side with a string-member 51 a having a weight 54suspended from the distal end thereof. As shown in FIG. 14, a weight 55is suspended from the distal end of each of the string-members 51 bprovided on the right and left sides of the strap member 51.

When the plane-acquiring device 50 is mounted on the head, the strapmember 51 is used to surround the head and is fixed to the head withpress-on and split-off (Velcro) fasteners (not shown) provided on thestrap member 51. By the use of the Velcro fasteners, the strap membercan be fit to the head irrespective of the size of the head of apatient.

Next, the plane member 52 is mounted while being adjusted to be alongthe virtual plane connecting the horizontal coordinate P of the lowerpoint of the ala nasi in FIG. 9 and the horizontal coordinate Q of theedge of the auditory meatus (opening of external acoustic meatus). Inthis case, adjustment is performed by viewing the level mounted to theplane member 52 so that the plane member 52 levels in a normalhorizontal direction. As a result, a plane in parallel to the Camper'splane can be obtained with the plane member 52. Where the right and leftopenings of the external acoustic meatus differ in height position whenthe plane member 52 is mounted, the height positions are to be set tothe average height of the right and left ears while visually discerningthe inclination state shown on the plane-measuring member 53. When thehead of the patient is deprived of the fixation from this state, thehead is inclined because the patient is achieving a balance of the headfrom the habitual occlusion state. By this head inclination, the patientis achieving a physical balance.

The dentist measures an inclination of the center of gravity of thepatient's head, i.e. the cranial bone inclination called rolling, andthe cranial bone anteroposterior inclination, i.e. cranial boneinclination called pitching, from the degrees of inclination of thestring-members 51 a and 51 b, respectively. The height of the eyes,position of the oral angle, heights of the shoulders, etc. are alsoconfirmed. Particularly, the angle of a line connecting the torusoccipitalis and the lower line of the arcus zygomaticus is observed. Asregards the inclination of the center of gravity of the head, forexample, the state of the weight 54′ in FIG. 13 indicates the state ofthe head inclined on the observer's left, and the state of the weight55′ in FIG. 14 indicates the state of the head inclined forward.

The dentist executes an occlusion correction treatment which will bedescribed later based on the inclinations of the string-members 51, 51 aand 51 b by the weights 54 and 55 to bring the mandible bone to a stableposition of the center of gravity. In proportion as the center ofgravity of the head is brought to a correct state, the angles ofinclination of the string-members 51 a and 51 b are made small and theangle of the head is made also small. The amount of forward movement ofthe head can also be confirmed from the positional relationship betweenthe sagittal line passing through the opening of external acousticmeatus and the acromioclavicular joint. When the rolling and pitchingare brought to the respective correct states after the occlusiontreatment, the inclinations of the string-members become close to themedian line S. By continuing the occlusion treatment until the weightscome to their respective correct positions from their inclinations, thecenter of gravity of the head is corrected to correct the inclination ofthe head and the posture of the entire body. At this time, the patient'sbody is in a natural and relaxed state without inducing any difficultyin the patient's muscles and breathing. That is, in a case where thepatient's head is inclined, a center-of-gravity line, which is obtainedby using the weight 54 suspended from the strap member 51 throughintermediation of the string-member, and the median line S of thepatient should deviate from each other. Therefore, the inclination ofthe patient's head is modified such that the center-of-gravity line andthe median line S match each other. In a case where the inclination ofthe head is modified as described above, at the plane member 52 is alsoinclined along with the inclination correction of the patient's head.Accordingly, the plane member 52 turns out not to level in the normalhorizontal direction at the lower point of the ala nasi of the patient.Next, in a case where the center-of-gravity line and the median line ofthe head match with each other, the plane member 52 is adjusted again insuch a direction that the level indicates horizontal at the lower pointof the ala nasi of the patient. Through this operation, the correctedCamper's plane C can be obtained.

The step of acquiring a plane C′ in parallel to the corrected Camper'splane C will be described. In FIG. 15, a guide member 60 comprises aguide plate 61, and an insertion plate 62 parallel to the guide plate61. The insertion plate 62 is provided as being able to be fixed at anappropriate interval while maintaining its parallel state relative tothe guide plate 61. In the state having the plane-acquiring device 50mounted on the head, the guide plate 61 of the guide member 60 isbrought into intimate contact with the plane member 52 and, in thisstate, the insertion plate 62 is inserted onto the maxillary tooth row Mwithin the oral cavity. The guide plate 61 is provided so that it maycome into intimate contact with the plane member 52 as mounted so thatits mounting position may be adjusted with adjustment screws (notshown), for example. In addition, a prescribed space S is left betweenthe insertion plate 62 and the maxillary tooth row M. The insertionplate 62 becomes parallel to the Camper's plane C and the Camper's planeC is moved into the oral cavity to enable the plane C′ to be acquired.

In the state mentioned above, a rubber material 13 that is arubber-based or gypsum-based impression material is inserted underpressure into the space S between the insertion plate 62 and themaxillary tooth row M, and wax is poured into the space S to cure therubber material 13. As a result, it is possible to obtain a toothmodel-shaped surface of the maxillary tooth row M on one surface of therubber material 13 and a plane parallel to the plane C′ on the othersurface thereof. The rubber material 13 is removed from between theinsertion plate 62 and the maxillary tooth row M. Furthermore, theinsertion plate 62 is provided so as to be detachable from the guidemember 60, an arch member is attached along the maxillary tooth row Musing a wire (not shown) etc. and the arch member is temporarilyattached within the maxillary tooth row M in parallel to the plane C;thereby enabling the errors, such as positional displacement of theinsertion plate 62, to be confirmed, thus ensuring accurate mounting ofthe insertion plate 62.

As described in the foregoing, in the step of acquiring the correctedCamper's plane, it is intended to obtain a corrected Camper's plane ofthe upper model 11 having formed the maxillary tooth row M. The headgearlike plane-acquiring-device 50 is used, for example, to acquire acorrected Camper's plane C from the lower point of the ala nasi to theedge of the auditory meatus and subsequently the guide member 60 is usedto form a plane C′ in parallel to the acquired corrected Camper's planeC on the rubber material 13. In this way, the plane C′ parallel to thecorrected Camper's plane C can accurately be acquired without relying ondentists' own experiences and gut feelings.

In FIG. 2 to FIG. 5, an upper frame 15 and a lower frame 21 are moldedfrom a resin material, such as a plastic resin etc. A molten resinmaterial is poured onto the upper and lower models 11 and 12 to be ableto closely contact the maxillary tooth row M and mandible tooth row Nfrom the inside, thereby attaining a tooth model-shaped molding.Reference numerals 22 and 23 in FIG. 5 denote hook-shaped stoppermembers made of metal, for example, and which are provided at fourplaces on the lower frame 21 for preventing the lower frame 21 fromsinking toward the tongue. Of these stopper members, the deeper stoppermembers 22 are positioned within a so-called occlusal power zone withinwhich a projection portion 41 a is set in position. The occlusal powerzone is called the origin of the oral function, is approximatingclearness as an important occlusion function zone in practicing theconstancy of the vital function of the entire body including the brainand is said to exist between the second bicuspid teeth T₁ and the firstmolar teeth T₂ of the maxillary tooth row M. The projection portion 41 aof a first screw member 41 that will be described later is mounted as apositioning reference point between the second bicuspid teeth T₃ and thefirst molar teeth T₄ of the mandible tooth row N so as to correspond tothe occlusal power zone. In this state, the lower frame 21 is mountedwithin the oral cavity, with the result that the lower frame 21 can bemounted at a most appropriate position relative to the center of gravityof the attracting force (tractional force). Thus, the upper frame 15 andlower frame 21 are positioned and fixed in a state in which the crossdirection thereof has been adjusted relative to the maxillary andmandible tooth rows M and N.

The upper frame 15 is provided with a plate-shaped member 16 in parallelto the plane C′ to thereby provide the upper frame 15 with the planeparallel to the Camper's plane C, taking the occlusal power zone intoconsideration. In FIG. 11, a mounting jig 30 is for mounting theplate-shaped member 16 on the upper frame 15. When mounting theplate-shaped member 16, the tooth model-shaped surface of the maxillarytooth row M for the rubber material 13 is placed on the upper model 11,and the mounting jig 30 is mounted while placing a flat plate 31 on theopposite surface of the rubber material 13 to thereby allow theinclination of the flat plate 31 to be identical with the plane C′ ofthe rubber material 13. Thus, the plane having the same angle as theCamper's plane C can be obtained. Though the flat plate 31 is formed ina planar shape to make it easy to form the plane C′, it may have throughholes 31 a as shown by the two-dot chain lines in FIG. 12.

The mounting jig 30 has a rod-shaped movable member 32 that can movevertically relative to the flat plate 31 and be fixed with a setscrew 33in a state adjusted to an optional height. A magnetic flat plate 34 madeof a magnet is attached to the distal end of the movable member 32 onthe side of the upper model 11 in parallel to the flat plate 31. To themagnetic flat plate 34 the plate-shaped member 16 made of a material,such as stainless steel, to form a maxillary plate can magneticallyattached. With this, the plane C′ acquired on the rubber material 13 canbe moved by means of the plate-shaped member 16 via the flat plate 31and magnetic flat plate 34 while maintaining its parallel state, therebyenabling the plate-shaped member 16 to be mounted at an optionalappropriate height.

In actually mounting the plate-shaped member 16 on the upper frame 15,the mounting jig is first mounted in the state in which the upper frame15 has been mounted on the upper model 11, and the movable member 32 isvertically moved to cause the plate-shaped member 16 magneticallyattached to the magnetic flat plate 34 to abut on a predeterminedposition of the upper frame 15. Subsequently, a resin material (notshown) that is the same material as the upper frame 15 and is in theform of liquid or powder is applied to the peripheral section of theplate-shaped member 16 with a brush. By removing the mounting jig 30 inthe state in which the resin material has been solidified, theplate-shaped member 16 can be integrated with the upper frame 15 aspinched by the upper frame 15 and applied resin material to constitutean upper mold-mounting member 14 having the plate-shaped member 16parallel to the Camper's plane C and mountable on the upper model inthis step of forming the upper mold-mounting member. Incidentally, sincethe magnetic flat plate 34 is magnetically attached to the plate-shapedmember 16, it can readily be detached from the plate-shaped member 16after the plate-shaped member 16 is integrated with the upper frame 15.

In FIG. 2 and FIG. 3, an adjustment member 24 of a lower mold-mountingmember 20 comprises the first screw member 41, a second screw member 42,a third screw member 43, a fourth screw member 44 and a plate member 27.The third and fourth screw members 43 and 44 are helically engaged witheach other via an oblong hole 27 a bored in the plate member 27 at amale thread part 43 a of the third screw member 43 and a female threadpart 44 a of the fourth screw member 44 (FIG. 10). The male and femalethread parts 43 a and 44 a are moved from side to side in their loosenedstate to be fastened to each other, thereby mounting the male and femalescrew members 43 and 44 to be movable from side to side within a framebody 27 a that is the oblong hole in the plate member 27. Also, thefirst screw member 41 is helically engaged with the third screw member43 at a male thread 41 b of the first screw member 41 and a femalethread 43 b of the third screw member 43, with the second screw member42 intervening between the first and third screw members 41 and 43, thusmounting the first screw member 41 so as to vertically movable relativeto the plate member 27. The height of the first screw member 41 is fixedwith fastening by the second screw member 42, with the height of thefirst screw member 41 adjusted by the male and female threads 41 b and43 b.

In this way, the pin-shaped projection portion 41 a of the first screwmember 41 in the adjustment member 24 is movable from side to side andup and down and can be fixed in a positioned state. Thus, the positionof the projection portion 41 a can smoothly and finely be adjustedwithout detaching the lower mold-mounting member 20 from the mandible,resulting in no possibility of affording repeated pains anduncomfortable feelings to the patient accompanied with the detachment ofthe lower mold-mounting member 20. Furthermore, the adjustment can beattained with ease when providing the first, second, third and fourthscrew members 41, 42, 43 and 44 with through holes (not shown) androtating them by means of a tool (not shown), such as a wrench, insertedinto the through holes. Incidentally, the distal end of the projectionportion 41 a is formed into a semi-spherical shape in cross section.

Next, the lower frame 21 is mounted so that it may have an accuratepositional relationship relative to the lower model 12 while confirmingthe position of the projection portion 41 a to mount the adjustmentmember 24 on the lower frame 21, with the distal end of the projectionportion 41 a of the adjustment member 24 adjusted to be positioned at alowest position from the lower frame 12. An adjustment is made so thatthe distal end of the projection portion 41 a becomes in a stateabutting on the plate-shaped member 16 when the lower model 14 havingattached thereto the lower frame 21 on which the adjustment member 24has been mounted and the upper model 11 having attached thereto theupper mold-mounting member 14 are subjected to occlusion. In the state,the adjustment member 24 is fixed to the lower frame 21. Thus, it isnecessary to fix the adjustment member 24 to the lower frame 21 in thestate in which the height of the adjustment member has accurately beenadjusted.

When mounting the adjustment member 24, the same resin material as thelower frame 21 is applied to the adjustment member 24 from above with abrush etc. in the same manner as in the case of the upper-mold-mountingmember 14. When the resin material has been solidified, the adjustmentmember 24 can be integrated with the lower frame 21 as being pinched bythe lower frame 21 and the applied resin material to constitute thelower mold-mounting member 20 having mounted thereto the adjustmentmember 24 that has the projection portion 41 a capable of abutting onthe plate-like member 16. When the projection portion 41 a has abuttedon the plate-like member 16, the relative position between the uppermold-mounting member 14 and the lower mold-mounting member 20 becomesadjustable. In order to prevent induction of rattling and loosenessbetween the upper and lower mold-mounting members when being mounted onthe upper and lower models 11 and 12, respectively, it is desirable topolish the upper and lower mold-mounting members with an appropriateabrasive. Furthermore, it is necessary to confirm in advance whether ornot the molded upper and lower models 11 and 12 match the tooth rowstate and occlusion state of the patient. If the models should havedistortion and/or air bubbles, these have to be remodeled or remedied.Moreover, even after the upper and lower mold-mounting members 14 and 20have been produced, it is necessary to confirm whether or not these canbe mounted on the upper and lower models, respectively.

A correction improvement method using the occlusion correctionimprovement instrument and an operation of the occlusion correctionimprovement instrument of the embodiment mentioned above will bedescribed. In the flowchart shown in FIG. 1, a dentist first asks apatient about his or her condition and examines the patient as describedearlier. Based on the results thereof, the state of occlusion of thepatient is diagnosed, the Camper's plane C is acquired on the maxillarytooth row M at the Camper's plane-acquiring step, and the plate-shapedmember 16 is attached in parallel to the Camper's plane C to the upperframe 15 at the upper mold-mounting member formation step. Subsequently,the lower mold-mounting member 20 provided with the projection portion41 a that is capable of abutting on the plate-shaped member 16 is formedat the lower mold-mounting member formation step, and at the followingcorrection step, the upper and lower mold-mounting members 14 and 20 areused to correct the maxillary and mandible tooth rows.

When mounting the upper and lower mold-mounting members 14 and 20 withinthe oral cavity, the projection portion 41 a of the lower mold-mountingmember 20 is allowed to abut on the center of the plate-shaped member 16of the upper mold-mounting member 14 and, in this state, the first screwmember 41 is rotated to widen the vertical interval between themold-mounting members, thereby making adjustment to the effect that agap is left between the maxillary and mandible tooth rows M and N whenthe upper and lower mold-mounting members have been mounted. Owing tothe presence of this gap, the upper and lower teeth are brought to astate of non-contact even when the mandible has been moved back andforth and around. That is to say, this state is a state in which theposition of occlusion of the mandible is lower than an ordinary positionof occlusion. With this state maintained, the upper mold-mounting member14 is removed from the maxillary tooth row M, and the surface of theplate-shaped member 16 is applied with a coating material so that thedistal end of the projection portion 41 a may describes its track on thecoated surface of the plate-shaped member 16 when the projection portion41 a has abutted on the plate-shaped member. Thus, the projectionportion 41 a can function as a marking device.

At this time, the Camper's plane-acquiring step and upper mold-mountingmember formation step are systemized to enable the plate-shaped member16 to be mounted at the precise position as maintained in parallel tothe Camper plane C. With this, the occlusion state of the maxilla andmandible can precisely be measured without inducing slippage of thedistal end of the projection portion 41 a on the plate-shaped member 16when the maxilla and mandible has been subjected to occlusion or tappingmotion, which slippage may possibly deviate the position of the mandiblebone toward a position getting away from the stable position.

In case where the projection portion 41 a fails to correctly abut on theneighborhood of the center of the plate-shaped member 16 as shown inFIG. 7 or FIG. 8 when the upper and lower mold-mounting members 14 and20 have been mounted on the maxillary and mandible tooth rows M and N,respectively, the position of the projection portion 41 a has to beadjusted. As a reason for the projection portion 41 a abuttingincorrectly on the plate-shaped member, right-and-left deviation of themaxilla of the patient relative to his or her mandible can be cited. Inthis case, the projection portion 41 a is moved rightward or leftwardrelative to the plate member 27 in the adjustment member 24 shown inFIG. 10, thereby enabling the projection portion 41 a to be disposedinfallibly in the vicinity of the center of the plate-like member 16. Asa result, the projection portion 41 a on the mandible can be positionedrelative to the median line S of the maxilla, and the balance of theocclusion relative to the median line S can be achieved. Even in casewhere the mandible is shifted rightward or leftward relative to themedian line S of the maxilla as shown in FIG. 7, unlike in FIG. 6 inwhich the mandible is correctly positioned relative to the median lineS, the median line S of the mandible can be taken correctly relative tothe maxilla. Also by the use of the stopper members 22 and 23 shown inFIG. 5, the maxilla and mandible can correctly be mounted withoutdeviating the maxilla and mandible anteroposteriorly. Incidentally, thepositional deviation of the maxilla and mandible can be improved throughthe correction treatment that will be described later.

Subsequently, the mandible of the patient is vertically moved to repeattapping motion plural times, and dot-shaped traces described on theplate-shaped member 16 by the projection portion 41 a are visuallydiscerned. It is possible to confirm from the vertical tapping motionwhether the mandible motion is constant during the mastication. When thedot-shaped traces described and left on the plate-shaped member 16 bythe projection portion 41 a through the tapping motion fall within aprescribed region, the patient is then subjected to marking motion bythe back-and-force-and-around movement of the mandible, which motionwill be described later. When the dot-shaped traces fall outside theprescribed region, this implies that the occlusion of the mandiblerelative to the maxilla is kept unequable, meaning an erratic occlusionstate. Therefore, the treatment shown below will be given to the patientfor the purpose of making the motion of the mandible during theocclusion constant.

In a case where the dot-shaped traces left through the tapping motionhave fluctuations, the patient has dropped into a bad habit due to themastication by undesirable prolonged occlusion of the maxillary andmandible tooth rows. The bad habit is caused by the deviation in workingside and worked side during the mastication, chopping type occlusion,etc. Furthermore, the bad habit exerts stress on the muscles that movethe maxillary and mandible tooth rows. Therefore, it is necessary toconduct a treatment for winding down the stress of the muscles. To winddown the stress of the muscles, a long and round cotton fiber calledroll Watte is pinched between the maxillary and mandible tooth rows, forexample. Otherwise, a mouthpiece-shaped soft or hard sprint is mountedon the tooth row to make up, during sleep, for example, a state in whichthe maxillary and mandible tooth rows are not in contact with eachother, thereby depriving the muscles of stress. This treatment continuesuntil the dot-shaped traces left through the tapping motion fall withinthe prescribed region.

Next, an early contact portion is confirmed from the track described onthe plate-shaped member 16 during the movement of the mandible of thepatient. By confirming the right-and-left early contact portion, in thiscase, the portion of contact made resulting from the working and workedsides can be confirmed. Though the mandible attempts to move so that theocclusion of the maxillary and mandible tooth rows may be naturallyuniformly attained, uniform occlusion cannot yet be achieved due to theearly contact portion. In this case, the muscle gets scent of the earlycontact portion and transmits it to the brain and, by the commands fromthe brain to perform the occlusion naturally avoiding the early contactportion, forced occlusion deviating from the natural desirable occlusionis performed. The mastication by the forced occlusion has been carriedout over a long period to give rise to the patient. A non-contact stateof the maxillary and mandible tooth rows is produced by the collision ofthe projection portion 41 a on the plate-shaped member 16, and thenon-contact space is gradually narrowed, thereby preventing the badhabit of the mandible motion resulting from the early contact portion ofthe tooth rows. In this state, contact features of the early contactportion can be three-dimensionally assessed.

When the dot-shaped traces through the vertical tapping motion hasfallen within the prescribed region, the mandible is moved sidewise todescribe a track on the plate-shaped member 16. A change in position onthe plane C′ of the lower mold-mounting member 20, parallel to theCamper's plane C, relative to the upper mold-mounting member 14 isvisually discerned from the described track. In this case, when thetrack has been described linearly, the occlusion is kept stable. Whenthe track has been described in a curved fashion, however, this shows anocclusion instable state. Next, while confirming the state of the track,the projection portion 41 a is moved little by little downward, with theprojection portion 41 a adjusted with the first and second screw members41 and 42, to gradually narrow the space between the maxillary andmandible tooth rows M and N and confirm the place of initial contactbetween the maxillary and mandible tooth rows M and N as the earlycontact portion.

After the confirmation of the early contact portion as described above,a grinding-in treatment for removing the early contact portion isperformed, in which the center position (centric), lateral and forwardpositions of the mandible are adjusted to remove the early contactportion. The removal of the early contact portion can be attainedthrough mounting of the occlusion correction improvement device withinthe oral cavity. This step and confirmation of the early contact portionare repeated to proceed with the treatment. When the occlusion symptomhas been improved, the treatment is then completed, followed bymaintenance of the maxillary and mandible tooth rows M and N.

In a case where the cheek teeth of the maxillary and mandible tooth rowsare separate when having mounted the occlusion correction improvementinstrument, it becomes necessary to secure the occlusion of the cheekteeth to start a next step of treatment. As a method of treatment, inthis case, the height of the early contact portion is determined using aprescribed dental treatment instrument (not shown) to attain occlusion.Furthermore, a dental crown of resin is coated on a cheek tooth, a hardor soft sprint is mounted within the oral cavity for a prescribed timefor the purpose of keeping the jaw joints and muscles in a quiet stateto stabilize these, or a muscle training is executed, thereby performthe occlusion treatment. In this way, the occlusion of the cheek teethis stabilized to make the occlusion uniform on the right and left sidesat the time of occlusion of the maxillary and mandible tooth rows M andN.

In the case of this method of treatment, even when the treatment hasimproved the occlusion symptom, the confirmation of the occlusion stateof the cheek teeth and the treatment are repeated two to three times.The reason for this is that even once the occlusion has been improved bythe treatment, the jaw muscles that were elongated and contractedfunction in order to possibly produce again the deviation of themandible. The repetition of the confirmation of the occlusion state andthe treatment enables a complete cure of the deviation to be effectedinto finally correct occlusion. When the occlusion symptom has beenimproved here, the treatment is terminated, followed by maintenance ofmaxillary and mandible tooth rows M and N.

In a case where the occlusion cannot be secured even by the step oftreatment mentioned above including excavation in a tooth, i.e. wherethe cheek teeth are separate due to small heights thereof, a next stepof treatment is started. In the next step of treatment, the cheek teethare subjected to prosthesis. In the prosthesis, a dental crown of metalor plastic, for example, is used to coat a cheek tooth to bury the gapand/or compensate for the height, thereby achieving occlusion of thecheek teeth in an optimum state. However, the prosthesis raises aproblem in that the position of the lower mold-mounting member 20mounted relative to the mandible tooth row N varies. This is because thepositions of the four stopper members 22 and 23 of the lowermold-mounting member 20 engaged with the cheek teeth made higher becomehigh. Thus, even though the upper and lower mold-mounting members usedso far should be mounted on the jaw tooth rows that have been subjectedto the prosthesis, it would be impossible to visually discern theocclusion state with exactitude. This necessitates preparation of newupper and lower mold-mounting members. By mounting the newly preparedupper and lower mold-mounting members on the maxillary and mandibletooth rows after the prosthesis of the cheek teeth, a fresh occlusionstate can visually discerned with exactitude, thereby enablingperformance of the treatment after the prosthesis.

As described above, to infallibly attain accurate occlusion of the upperand lower cheek teeth, there are two cases, one excavating the cheekteeth and the other subjecting the cheek teeth to prosthesis. Thus, anappropriate treatment is to be made in accordance with the occlusionstate of every one patient while visually discerning the state ofocclusion of the maxillary and mandible tooth rows M and N using theocclusion correction improvement instrument. When the occlusion symptomhas been improved here, the treatment is terminated, followed bymaintenance of maxillary and mandible tooth rows M and N.

Moreover, as a next step of treatment, treatments such as tooth rowcorrection, implantorogy and mounting of artificial dentitions anddental crowns with the aim at heightening the patient's sensousness, aremade in accordance with patient's desires. In conducting thesetreatments, treatments appropriate to the patients are conducted whileconfirming the occlusion state when having mounted the upper and lowermold-mounting members. Even after the completion of the treatment of themaxillary and mandible tooth rows by means of the correction improvementmethod described above, it is desirable to conduct a maintenancetreatment, such as a periodic medical examination utilizing theocclusion correction improvement instrument.

Here, the occlusion of the tooth rows and body balance will bedescribed. Generally, when one's eyes are trained on the horizontal, theone's head is in an equilibrium situation. When the plane C′ is parallelto the plane of occlusion of the upper and lower tooth rows (virtualocclusion plane) and the head portion of the mandible joint is in acorrect state within the articular fossa, the balance between the centerof gravity of the head and the gravitational line (median line) of ahuman body is best achieved. Though the center of gravity of the headvaries depending on the position of the jaw joint, the occlusaltreatment can bring the jaw position to a correct state, therebyenabling the center of gravity of the head to be in a correct state.Therefore, the indefinite complaint can be eliminated. At this time, thepoint of support of the head lies in the atlanto (first cervicalvertebra), and the balance of the head and the human body is achieved bymeans of the head neck muscle.

It can be confirmed through visual discernment of the states of theweights 54 and 55 of the strap member 51 whether or not the center ofgravity of the head could be corrected to a desirable state through theocclusal treatment, the horizontal deviation of the mandible relative tothe brainpan can be confirmed, and the displacement of the head, such asthe inclination of the head, can be measured. Completion of the occlusaltreatment can be confirmed when the displacement of the head has beencorrected and when the center of gravity of the head has correctlyoverlapped the median line. The state of head displacement includesforward-movement displacement in which the head moves forward in a largeamount relative to the human body, extension displacement in which thehead inclines upward, flexion displacement in which the head inclinesdownward, lateral fold displacement of the occipital bone and atlanto,rotary displacement of the atlanto and lower cervical vertebrae, acombination of the rotary displacement and the lateral fold displacementand lateral mobile displacement in which the head moves laterally. Thenormal or these abnormal states can accurately measured through thevisual discernment of the weights 54 and 55.

The occlusion correction improvement instrument of the present inventioncan be formed in line with the shapes of the maxillary and mandibletooth rows and the mastication state by occlusion and mounted on thetooth rows of every one patient in an optimal state. When mounting theocclusion correction improvement instrument, occlusion is conducted in anon-contact state of the teeth of the maxillary tooth row M and those ofthe mandible tooth row N to make it possible to simply confirm thesymptom of a patient and, in accordance with the patient's symptom, theocclusal treatment can be divided into an optimal number of steps,thereby making it possible to correct the occlusion of the patient withexactitude. Furthermore, since the plate-shaped member 16 is mountedsubstantially in parallel to the Camper's plane, appropriate occlusionof the maxilla and mandible is obtained, or the mandible bone canspontaneously be moved to a position at which the balance of the musclesand organs can be achieved relative to the maxillary bone during thetapping motion, thereby restoring to an essentially desirable jawposition. Therefore, any dentists having a similar technical level canacquire substantially the same treatment effect without relying on theirown experiences and gut feelings to enable the indefinite complaint andentire body posture distortion to be eliminated.

As described in the foregoing, though the position of the mandible bonerelative to the maxillary bone relates deeply to the indefinitecomplaint and entire body posture distortion, according to the occlusioncorrection improvement instrument, the occlusal treatment using as thereference the median line of the head that is the anatomical baseline ismade to correct the occlusion and thereby cure even the human bodydistortion.

Also, since measures can be adopted while confirming the state ofocclusion after the medical treatment with the occlusion correctionimprovement instrument every one step, a dentist can take an appropriateocclusal treatment without taking any unnecessary and excess treatment,whereas a patient can receive a short-period occlusion correctionthrough the number of the treatment steps made smallest and hold downexpenses.

Incidentally, in the upper mold-mounting member 14 as shown in FIG. 4and FIG. 10, a substantially U-shaped temporary fixation member 45 istemporarily fixed to a bolt hole 16 a in the plate-shaped plate 16 witha bolt 46 and a nut 47. By changing the position of the temporaryfixation of the temporary fixation member 45, the position of aninsertion hole 45 a in the temporary fixation member 45 can be changed.When the adjustment member 24 and temporary fixation member 45 aretemporarily fixed, with the projection portion 41 a inserted into theinsertion hole 45 a, the temporarily fixed state can be maintained, andthe positional relationship of the upper and lower mold-mounting members14 and 20 can be retained. Therefore, by mounting the upper and lowermold-mounting members 14 and 20 on the maxillary and mandible tooth rowsM and N, respectively, subjecting the maxillary and mandible tooth rowsM and N to occlusion to insert the projection portion 41 a into theinsertion hole 45 a and confirming a click from the insertion, it ispossible to confirm that the lower mold-mounting member 20 (mandible) isin an appropriate position relative to the upper mold-mounting member 14(maxilla) and that the occlusion of the maxillary and mandible toothrows M and N is appropriate. Thus, use of the temporary fixation member45 after the tooth row correction enables the correction results to beconfirmed with ease.

1-9. (canceled)
 10. An occlusion correction improvement instrument,wherein a corrected Camper's plane of a patient is used in combinationwith a Camper's plane-acquiring device which can be acquired at anytime, comprising: an upper mold-mounting member provided with aplate-shaped member so as to be parallel to the corrected Camper's planewhen mounted on a maxillary tooth row of the patient; and a lowermold-mounting member mountable on a mandible tooth row of the patient,the lower mold-mounting member including a pin-shaped projection portionwhich can be fixed by adjusting a position of the pin-shaped projectionportion vertically and laterally with an angle of the pin-shapedprojection portion relative to an upper surface of the lowermold-mounting member being kept at a fixed angle; a sliding member,including an upper surface and a lower surface which are both smooth,flat surfaces, attached with the pin-shaped projection portion forsmoothly and continuously sliding the position of the pin-shapedprojection portion along the smooth, flat surface rightward or leftwardrelative to a median line of a maxilla, the sliding member configured tocontinuously adjust the attached pin-shaped projection portion to lie onthe median line of the maxilla with the mandible tooth row of thepatient kept parallel to the corrected Camper's plane, the pin-shapedprojection portion projecting upward from the upper surface of thesliding member of the lower mold-mounting member mounted on the mandibleso as to be moved continuously along the smooth, flat surfaces with atip of the pin-shaped projection portion indicating whether thepin-shaped projection portion is located at the median line of themaxilla with the mandible tooth row of the patient kept parallel to thecorrect Camper's plane upon occurring a displacement of the mandible ofthe patient relative to the median line of the maxilla when the uppermold-mounting member is mounted on the maxillary tooth row of thepatient and the lower mold-mounting member is mounted on the mandibletooth row of the patient, and a fastening member for fastening thesliding member so as to fix the position of the pin-shaped projectionportion, wherein the fastening member can be loosened for the slidingmember to slide the position of the pin-shaped projection portion.